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mrs_skeptik [129]
3 years ago
14

I need this by tomorrow! please help me, I'm desperate. I dont understand it well.​

Mathematics
1 answer:
tester [92]3 years ago
8 0
Buy gas before you leave
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The equation below model the numbers of two portable music players (y) and days after both players were introduced (x).
soldier1979 [14.2K]

Answer:

a. On the 13th day

b. 2,451 players we’re sold on that day

Step-by-step explanation:

a. The day in which the company sold the same number of players can be calculated by equating the values of y that we have ;

y = 191x-32 and y = -x^2 + 200x + 20

Equating both, we have;

191x-32 = -x^2 + 200x + 20

x^2 -200x + 191x-20-32 = 0

x^2-9x-52 = 0

x^2-13x + 4x -52 = 0

x(x-13)+4(x-13) = 0

(x-13)(x+4) = 0

x = 13 or -4

as days cannot be negative we choose only x = 13

This means the company sold equal numbers of players on the 13th day

b. To get the number of players sold on that day, we choose any of the y equation and substitute x = 13

Thus, we have for y = 191x -32; 191(13) - 32 = 2,451 players

4 0
3 years ago
Last Sunday 1,575 people visited the amusement park.
Ann [662]

Answer:

Adults 882

teenagers 252

children 441

Step-by-step explanation:

56% of 1575

56/100*1575

16% of 1575

16/*1575

28% of 1575

28/100*1575

5 0
3 years ago
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Barry the Beaver gnaws his way through a circular section of wood. The sector has a radius of 5.90 m and central angle 85.3°. Wh
NikAS [45]

Answer:

25.899sq.metres

Step-by-step explanation:

Area of this section of wood = Area of the sector

Area of the sector = theta/360 * πr²

r is the radius

theta is the central angle

Substitute

Area of the sector = 85.3/360 * πr²

Area of the sector = 85.3/360 * 3.14(5.90)²

Area of the sector = 85.3/360 * 109.3034

Area of the sector = 9,323.58002/360

Area of the sector = 25.899

Hence the area of the section of wood  is 25.899sq.metres

5 0
3 years ago
PLS HURRY UP I REALLY NEED THIS.
DIA [1.3K]

Answer:

Finding the product of two positive numbers and three negative numbers will give us a negative answer because + x - is _ ..positive *negative is negative

8 0
3 years ago
Help one question! but pls show work
Tamiku [17]

Answer:

5

Step-by-step explanation:

cant show work i need to draw then

6 0
3 years ago
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